ecattime - tpcclib 0.7.3 © 2019 by Turku PET Centre

Change the scan_start_time and time frames in ECAT image or sinogram file
to refer to the injection time instead of the original delayed
scan_start_time. Correction for physical decay is changed accordingly
in images, but not in sinograms.
 
Before using this program, PET image must be decay corrected to its
scan_start_time, but sinogram must not be corrected for decay.
Please make backup of the original files before using this program.
 
Do not use this program for catenation of images; use ecatcat instead.
 
Usage: ecattime [Options] ecatfile [time]
 
Optional time is either the time (min) from radiotracer injection
to the PET scan start time, or, the new scan start time.
If time is not entered, then program makes no changes to the data, but
just displays the current scan_start_time and time when the collection of
the first frame was started.
 
Options:
 -h, --help
     Display usage information on standard output and exit.
 -v, --version
     Display version and compile information on standard output and exit.
 -d[n], --debug[=n], --verbose[=n]
     Set the level (n) of debugging messages and listings.
 -q, --quiet
     Suppress displaying normal results on standard output.
 -s, --silent
     Suppress displaying anything except errors.
 
Example 1. PET scan is known to have started 30.2 min after tracer injection.
Times and decay will be corrected to the new scan start time:
     ecattime s2345dy1.v 30.2
Example 2. Injection time was 14:00:49, and PET times and decay will be
corrected to this new scan start time:
     ecattime s2345dy1.v 14:00:49
 
See also: imgdecay, eframe, ecatcat, egetstrt, esetstrt, imgunit
 
Keywords: ECAT, image, physical decay, modelling